2. Today we are going to:
• Review photosynthesis with a game
• Learn about the vital function: “Interaction with the
environment”
3. Questions:
• Where takes place photosynthesis?
• What are chloroplasts?
• What is chlorophyll?
• How can gases go in and out of the leaves?
• What are stomata?
• What is the raw sap?
• What is the elaborated sap?
16. 3- Look at the picture and identify the right answers
a) 1 is the raw sap and travels
through 2, the phloem
b) 1 is the raw sap and travels
through 2, the xylem
c) 3 is the raw sap and travels
through the phloem
d) 3 is the elaborated sap and
travels through the phloem
20. 4- Look at the picture and identify the right answers about
the process of photosynthesis
a)1- raw sap, 2-elaborated
sap, 3-stomata, 4-carbon
dioxide, 5-oxygen
c) 1- Elaborated sap, 2-
elaborated sap, 3-stomata, 4-
carbon dioxide, 5-oxygen
b) 1- Elaborated sap, 2-raw
sap, 3-stomata, 4-oxygen,
carbon dioxide
23. Interaction with the environment in plants
• What are stimuli?
• Do plants move?
• Do plants respond to stimuli? How?
24. Stimuli
• Changes in the environment. Living things receive and react
to these stimuli.
25. Plants reaction to stimuli
• Tropisms
• Nastic movements
• Video about tropisms-stimuli
• https://www.youtube.com/watch?v=pCFstSMvAMI
• Go to page 144 book/digital book santillana
